In order for a company to raise capital under Rules 506(b), 506(c), or 504 of Regulation D without having to register the offering with the SEC, it must file a Form D. A Form D is a short notice that includes basic information about the company and its offering, including the names and addresses of the company’s executive officers, date of the first sales, and the size of the offering. The SEC mandates that a Form D must be filed within 15 days after the date of the first sale of securities in the offering.